Udon Thani Province is a province in northeast Thailand. It is bordered by the provinces of Nong Khai to the north, Sakon Nakhon to the east, Kalasin Province to the southeast, Khon Kaen to the south, and Loei and Nong Bua Lamphu to the west.

Ban Chiang Archeologi... 12

Udon Thani 12